Use these options to specify how the date range returns results. "Exact" means that the start and end dates of descriptions returned must fall entirely within the date range entered. "Overlapping" means that any description whose start or end dates touch or overlap the target date range will be returned.

Fonds consists chiefly of ephemera and correspondence relating to the work of wood engravers of Thomas and John Bewick of Newcastle, England, in the late eighteenth and nineteenth centuries. The ephemera found in series 1 includes various examples...